Trane CNT7737 Control 321894-709 Flexible Installation: Features standard 1/4"

Flexible Installation: Features standard 1/4" NPT bottom inlet and can be mounted without hyper-accurate leveling

The McDonnell & Miller 341900 (Model SA47-104) is a critical replacement bellows assembly engineered specifically for Series 247 and Series 247-2 mechanical water feeders

Thermal Resistance: High-grade materials designed to withstand the intense heat of modulating condensing boilers

The integrated auxiliary contacts allow for essential feedback loops or interlocking control logic

Is the S1-026-25573-007 compatible with all 7/8" suction lines

Trane CNT7737 Control 321894-709 Flexible Installation: Features standard 1/4"The Trane CNT7737 Control is a critical OEM integrated furnace control (IFC) designed specifically for single stage gas furnaces and air handlers. As the primary logic module for the air handler, this integrated control manages the complex sequence of operation, including ignition timing, blower sequencing, and safety circuit monitoring. Engineered to support constant torque motors and single stage systems, the CNT7737 replaces several legacy part